<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" />
<title>VetoableChangeSupport xref</title>
<link type="text/css" rel="stylesheet" href="../../stylesheet.css" />
</head>
<body>
<div id="overview"><a href="../../../../../../../../../apidocs/java/beans/VetoableChangeSupport.html">View Javadoc</a></div><pre>

<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> * Copyright 2007 Sandy McArthur, Jr.</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> *  Licensed to the Apache Software Foundation (ASF) under one or more</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> *  contributor license agreements.  See the NOTICE file distributed with</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> *  this work for additional information regarding copyright ownership.</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> *  The ASF licenses this file to You under the Apache License, Version 2.0</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> *  (the "License"); you may not use this file except in compliance with</em>
<a name="9" href="#9">9</a>   <em class="jxr_comment"> *  the License.  You may obtain a copy of the License at</em>
<a name="10" href="#10">10</a>  <em class="jxr_comment"> *</em>
<a name="11" href="#11">11</a>  <em class="jxr_comment"> *     <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="12" href="#12">12</a>  <em class="jxr_comment"> *</em>
<a name="13" href="#13">13</a>  <em class="jxr_comment"> *  Unless required by applicable law or agreed to in writing, software</em>
<a name="14" href="#14">14</a>  <em class="jxr_comment"> *  distributed under the License is distributed on an "AS IS" BASIS,</em>
<a name="15" href="#15">15</a>  <em class="jxr_comment"> *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="16" href="#16">16</a>  <em class="jxr_comment"> *  See the License for the specific language governing permissions and</em>
<a name="17" href="#17">17</a>  <em class="jxr_comment"> *  limitations under the License.</em>
<a name="18" href="#18">18</a>  <em class="jxr_comment"> */</em>
<a name="19" href="#19">19</a>  
<a name="20" href="#20">20</a>  <strong class="jxr_keyword">package</strong> java.beans;
<a name="21" href="#21">21</a>  
<a name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.util.HashMap;
<a name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.util.Iterator;
<a name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.util.List;
<a name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.util.Map;
<a name="27" href="#27">27</a>  
<a name="28" href="#28">28</a>  <em class="jxr_javadoccomment">/**</em>
<a name="29" href="#29">29</a>  <em class="jxr_javadoccomment"> * This is a utility class that can be used by beans that support constrained</em>
<a name="30" href="#30">30</a>  <em class="jxr_javadoccomment"> * properties.</em>
<a name="31" href="#31">31</a>  <em class="jxr_javadoccomment"> *</em>
<a name="32" href="#32">32</a>  <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a name="33" href="#33">33</a>  <em class="jxr_javadoccomment"> * Note: The emulated version differs from the JDK version in that it is</em>
<a name="34" href="#34">34</a>  <em class="jxr_javadoccomment"> * &lt;em&gt;not&lt;/em&gt; Serializable.</em>
<a name="35" href="#35">35</a>  <em class="jxr_javadoccomment"> * &lt;/p&gt;</em>
<a name="36" href="#36">36</a>  <em class="jxr_javadoccomment"> */</em>
<a name="37" href="#37">37</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../java/beans/VetoableChangeSupport.html">VetoableChangeSupport</a> {
<a name="38" href="#38">38</a>      <em class="jxr_comment">/*</em>
<a name="39" href="#39">39</a>  <em class="jxr_comment">     * This file is based on code from the Apache Harmony Project.</em>
<a name="40" href="#40">40</a>  <em class="jxr_comment">     * <a href="http://svn.apache.org/repos/asf/harmony/enhanced/classlib/trunk/modules/beans/src/main/java/java/beans/VetoableChangeSupport.java" target="alexandria_uri">http://svn.apache.org/repos/asf/harmony/enhanced/classlib/trunk/modules/beans/src/main/java/java/beans/VetoableChangeSupport.java</a></em>
<a name="41" href="#41">41</a>  <em class="jxr_comment">     *</em>
<a name="42" href="#42">42</a>  <em class="jxr_comment">     * This file has been siginificantly modified for the target enviroment of a</em>
<a name="43" href="#43">43</a>  <em class="jxr_comment">     * browser but the Harmony layout and structure has been kept to try to help</em>
<a name="44" href="#44">44</a>  <em class="jxr_comment">     * make future re-syncs easier.</em>
<a name="45" href="#45">45</a>  <em class="jxr_comment">     */</em>
<a name="46" href="#46">46</a>  
<a name="47" href="#47">47</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">transient</strong> Object sourceBean;
<a name="48" href="#48">48</a>  
<a name="49" href="#49">49</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">transient</strong> List<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> allVetoableChangeListeners = <strong class="jxr_keyword">new</strong> ArrayList/*&lt;VetoableChangeListener&gt;*/();</em>
<a name="50" href="#50">50</a>  
<a name="51" href="#51">51</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">transient</strong> Map<em class="jxr_comment">/*<em class="jxr_comment">&lt;String, List&lt;VetoableChangeListener&gt;&gt;*/</em> selectedVetoableChangeListeners = <strong class="jxr_keyword">new</strong> HashMap/*&lt;String, List&lt;VetoableChangeListener&gt;&gt;*/();</em>
<a name="52" href="#52">52</a>  
<a name="53" href="#53">53</a>      <strong class="jxr_keyword">public</strong> <a href="../../java/beans/VetoableChangeSupport.html">VetoableChangeSupport</a>(Object sourceBean) {
<a name="54" href="#54">54</a>          <strong class="jxr_keyword">if</strong> (sourceBean == <strong class="jxr_keyword">null</strong>) {
<a name="55" href="#55">55</a>              <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException();
<a name="56" href="#56">56</a>          }
<a name="57" href="#57">57</a>          <strong class="jxr_keyword">this</strong>.sourceBean = sourceBean;
<a name="58" href="#58">58</a>      }
<a name="59" href="#59">59</a>  
<a name="60" href="#60">60</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> fireVetoableChange(String propertyName, Object oldValue,
<a name="61" href="#61">61</a>              Object newValue) <strong class="jxr_keyword">throws</strong> PropertyVetoException {
<a name="62" href="#62">62</a>          <a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a> event = createPropertyChangeEvent(propertyName,
<a name="63" href="#63">63</a>                  oldValue, newValue);
<a name="64" href="#64">64</a>          doFirePropertyChange(event);
<a name="65" href="#65">65</a>      }
<a name="66" href="#66">66</a>  
<a name="67" href="#67">67</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <strong class="jxr_keyword">void</strong> removeVetoableChangeListener(String propertyName,
<a name="68" href="#68">68</a>              <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a> listener) {
<a name="69" href="#69">69</a>          <strong class="jxr_keyword">if</strong> ((propertyName != <strong class="jxr_keyword">null</strong>) &amp;&amp; (listener != <strong class="jxr_keyword">null</strong>)) {
<a name="70" href="#70">70</a>              List<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> listeners =</em>
<a name="71" href="#71">71</a>                  (List)selectedVetoableChangeListeners.get(propertyName);
<a name="72" href="#72">72</a>  
<a name="73" href="#73">73</a>              <strong class="jxr_keyword">if</strong> (listeners != <strong class="jxr_keyword">null</strong>) {
<a name="74" href="#74">74</a>                  listeners.remove(listener);
<a name="75" href="#75">75</a>              }
<a name="76" href="#76">76</a>          }
<a name="77" href="#77">77</a>      }
<a name="78" href="#78">78</a>  
<a name="79" href="#79">79</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <strong class="jxr_keyword">void</strong> addVetoableChangeListener(String propertyName,
<a name="80" href="#80">80</a>              <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a> listener) {
<a name="81" href="#81">81</a>          <strong class="jxr_keyword">if</strong> (propertyName != <strong class="jxr_keyword">null</strong> &amp;&amp; listener != <strong class="jxr_keyword">null</strong>) {
<a name="82" href="#82">82</a>              List<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> listeners =</em>
<a name="83" href="#83">83</a>                  (List)selectedVetoableChangeListeners.get(propertyName);
<a name="84" href="#84">84</a>  
<a name="85" href="#85">85</a>              <strong class="jxr_keyword">if</strong> (listeners == <strong class="jxr_keyword">null</strong>) {
<a name="86" href="#86">86</a>                  listeners = <strong class="jxr_keyword">new</strong> ArrayList<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em>();</em>
<a name="87" href="#87">87</a>                  selectedVetoableChangeListeners.put(propertyName, listeners);
<a name="88" href="#88">88</a>              }
<a name="89" href="#89">89</a>  
<a name="90" href="#90">90</a>              listeners.add(listener);
<a name="91" href="#91">91</a>          }
<a name="92" href="#92">92</a>      }
<a name="93" href="#93">93</a>  
<a name="94" href="#94">94</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a>[] getVetoableChangeListeners(
<a name="95" href="#95">95</a>              String propertyName) {
<a name="96" href="#96">96</a>          List<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> listeners = <strong class="jxr_keyword">null</strong>;</em>
<a name="97" href="#97">97</a>  
<a name="98" href="#98">98</a>          <strong class="jxr_keyword">if</strong> (propertyName != <strong class="jxr_keyword">null</strong>) {
<a name="99" href="#99">99</a>              listeners = (List)selectedVetoableChangeListeners.get(propertyName);
<a name="100" href="#100">100</a>         }
<a name="101" href="#101">101</a> 
<a name="102" href="#102">102</a>         <strong class="jxr_keyword">return</strong> (listeners == <strong class="jxr_keyword">null</strong>) ? <strong class="jxr_keyword">new</strong> VetoableChangeListener[] {}
<a name="103" href="#103">103</a>                 : getAsVetoableChangeListenerArray(listeners);
<a name="104" href="#104">104</a> 
<a name="105" href="#105">105</a>     }
<a name="106" href="#106">106</a> 
<a name="107" href="#107">107</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> fireVetoableChange(String propertyName, <strong class="jxr_keyword">boolean</strong> oldValue,
<a name="108" href="#108">108</a>             <strong class="jxr_keyword">boolean</strong> newValue) <strong class="jxr_keyword">throws</strong> PropertyVetoException {
<a name="109" href="#109">109</a>         <a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a> event = createPropertyChangeEvent(propertyName,
<a name="110" href="#110">110</a>                 oldValue, newValue);
<a name="111" href="#111">111</a>         doFirePropertyChange(event);
<a name="112" href="#112">112</a>     }
<a name="113" href="#113">113</a> 
<a name="114" href="#114">114</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> fireVetoableChange(String propertyName, <strong class="jxr_keyword">int</strong> oldValue,
<a name="115" href="#115">115</a>             <strong class="jxr_keyword">int</strong> newValue) <strong class="jxr_keyword">throws</strong> PropertyVetoException {
<a name="116" href="#116">116</a>         <a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a> event = createPropertyChangeEvent(propertyName,
<a name="117" href="#117">117</a>                 oldValue, newValue);
<a name="118" href="#118">118</a>         doFirePropertyChange(event);
<a name="119" href="#119">119</a>     }
<a name="120" href="#120">120</a> 
<a name="121" href="#121">121</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <strong class="jxr_keyword">boolean</strong> hasListeners(String propertyName) {
<a name="122" href="#122">122</a>         <strong class="jxr_keyword">boolean</strong> result = !allVetoableChangeListeners.isEmpty();
<a name="123" href="#123">123</a>         <strong class="jxr_keyword">if</strong> (!result &amp;&amp; propertyName != <strong class="jxr_keyword">null</strong>) {
<a name="124" href="#124">124</a>             List<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> listeners =</em>
<a name="125" href="#125">125</a>                 (List)selectedVetoableChangeListeners.get(propertyName);
<a name="126" href="#126">126</a>             <strong class="jxr_keyword">if</strong> (listeners != <strong class="jxr_keyword">null</strong>) {
<a name="127" href="#127">127</a>                 result = !listeners.isEmpty();
<a name="128" href="#128">128</a>             }
<a name="129" href="#129">129</a>         }
<a name="130" href="#130">130</a>         <strong class="jxr_keyword">return</strong> result;
<a name="131" href="#131">131</a>     }
<a name="132" href="#132">132</a> 
<a name="133" href="#133">133</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <strong class="jxr_keyword">void</strong> removeVetoableChangeListener(
<a name="134" href="#134">134</a>             <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a> listener) {
<a name="135" href="#135">135</a>         <strong class="jxr_keyword">if</strong> (listener != <strong class="jxr_keyword">null</strong>) {
<a name="136" href="#136">136</a>             Iterator<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> iterator =</em>
<a name="137" href="#137">137</a>                 allVetoableChangeListeners.iterator();
<a name="138" href="#138">138</a>             <strong class="jxr_keyword">while</strong> (iterator.hasNext()) {
<a name="139" href="#139">139</a>                 <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a> pcl = (VetoableChangeListener)iterator.next();
<a name="140" href="#140">140</a>                 <strong class="jxr_keyword">if</strong> (pcl == listener) {
<a name="141" href="#141">141</a>                     iterator.remove();
<a name="142" href="#142">142</a>                     <strong class="jxr_keyword">break</strong>;
<a name="143" href="#143">143</a>                 }
<a name="144" href="#144">144</a>             }
<a name="145" href="#145">145</a>         }
<a name="146" href="#146">146</a>     }
<a name="147" href="#147">147</a> 
<a name="148" href="#148">148</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <strong class="jxr_keyword">void</strong> addVetoableChangeListener(
<a name="149" href="#149">149</a>             <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a> listener) {
<a name="150" href="#150">150</a>         <strong class="jxr_keyword">if</strong> (listener != <strong class="jxr_keyword">null</strong>) {
<a name="151" href="#151">151</a>             allVetoableChangeListeners.add(listener);
<a name="152" href="#152">152</a>         }
<a name="153" href="#153">153</a>     }
<a name="154" href="#154">154</a> 
<a name="155" href="#155">155</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a>[] getVetoableChangeListeners() {
<a name="156" href="#156">156</a>         List<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> result =</em>
<a name="157" href="#157">157</a>             <strong class="jxr_keyword">new</strong> ArrayList<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em>(allVetoableChangeListeners);</em>
<a name="158" href="#158">158</a> 
<a name="159" href="#159">159</a>         Iterator<em class="jxr_comment">/*<em class="jxr_comment">&lt;String&gt;*/</em> keysIterator = selectedVetoableChangeListeners</em>
<a name="160" href="#160">160</a>                 .keySet().iterator();
<a name="161" href="#161">161</a>         <strong class="jxr_keyword">while</strong> (keysIterator.hasNext()) {
<a name="162" href="#162">162</a>             String propertyName = (String)keysIterator.next();
<a name="163" href="#163">163</a> 
<a name="164" href="#164">164</a>             List<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> selectedListeners =</em>
<a name="165" href="#165">165</a>                 (List)selectedVetoableChangeListeners.get(propertyName);
<a name="166" href="#166">166</a>             <strong class="jxr_keyword">if</strong> (selectedListeners != <strong class="jxr_keyword">null</strong>) {
<a name="167" href="#167">167</a>               <strong class="jxr_keyword">for</strong> (Iterator it = selectedListeners.iterator(); it.hasNext();) {
<a name="168" href="#168">168</a>                 <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a> listener = (VetoableChangeListener)it.next();
<a name="169" href="#169">169</a>                 result.add(<strong class="jxr_keyword">new</strong> <a href="../../java/beans/VetoableChangeListenerProxy.html">VetoableChangeListenerProxy</a>(propertyName,
<a name="170" href="#170">170</a>                     listener));
<a name="171" href="#171">171</a>               }
<a name="172" href="#172">172</a> 
<a name="173" href="#173">173</a>             }
<a name="174" href="#174">174</a> 
<a name="175" href="#175">175</a>         }
<a name="176" href="#176">176</a> 
<a name="177" href="#177">177</a>         <strong class="jxr_keyword">return</strong> getAsVetoableChangeListenerArray(result);
<a name="178" href="#178">178</a>     }
<a name="179" href="#179">179</a> 
<a name="180" href="#180">180</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> fireVetoableChange(<a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a> event)
<a name="181" href="#181">181</a>             <strong class="jxr_keyword">throws</strong> <a href="../../java/beans/PropertyVetoException.html">PropertyVetoException</a> {
<a name="182" href="#182">182</a>         doFirePropertyChange(event);
<a name="183" href="#183">183</a>     }
<a name="184" href="#184">184</a> 
<a name="185" href="#185">185</a>     <strong class="jxr_keyword">private</strong> <a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a> createPropertyChangeEvent(String propertyName,
<a name="186" href="#186">186</a>             Object oldValue, Object newValue) {
<a name="187" href="#187">187</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a>(sourceBean, propertyName, oldValue,
<a name="188" href="#188">188</a>                 newValue);
<a name="189" href="#189">189</a>     }
<a name="190" href="#190">190</a> 
<a name="191" href="#191">191</a>     <strong class="jxr_keyword">private</strong> <a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a> createPropertyChangeEvent(String propertyName,
<a name="192" href="#192">192</a>             <strong class="jxr_keyword">boolean</strong> oldValue, <strong class="jxr_keyword">boolean</strong> newValue) {
<a name="193" href="#193">193</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a>(sourceBean, propertyName,
<a name="194" href="#194">194</a>             Boolean.valueOf(oldValue), Boolean.valueOf(newValue));
<a name="195" href="#195">195</a>     }
<a name="196" href="#196">196</a> 
<a name="197" href="#197">197</a>     <strong class="jxr_keyword">private</strong> <a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a> createPropertyChangeEvent(String propertyName,
<a name="198" href="#198">198</a>             <strong class="jxr_keyword">int</strong> oldValue, <strong class="jxr_keyword">int</strong> newValue) {
<a name="199" href="#199">199</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a>(sourceBean, propertyName, <strong class="jxr_keyword">new</strong> Integer(
<a name="200" href="#200">200</a>                 oldValue), <strong class="jxr_keyword">new</strong> Integer(newValue));
<a name="201" href="#201">201</a>     }
<a name="202" href="#202">202</a> 
<a name="203" href="#203">203</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> doFirePropertyChange(<a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a> event)
<a name="204" href="#204">204</a>             <strong class="jxr_keyword">throws</strong> <a href="../../java/beans/PropertyVetoException.html">PropertyVetoException</a> {
<a name="205" href="#205">205</a>         String propName = event.getPropertyName();
<a name="206" href="#206">206</a>         Object oldValue = event.getOldValue();
<a name="207" href="#207">207</a>         Object newValue = event.getNewValue();
<a name="208" href="#208">208</a> 
<a name="209" href="#209">209</a>         <strong class="jxr_keyword">if</strong> (newValue != <strong class="jxr_keyword">null</strong> &amp;&amp; oldValue != <strong class="jxr_keyword">null</strong> &amp;&amp; newValue.equals(oldValue)) {
<a name="210" href="#210">210</a>             <strong class="jxr_keyword">return</strong>;
<a name="211" href="#211">211</a>         }
<a name="212" href="#212">212</a> 
<a name="213" href="#213">213</a>         <em class="jxr_comment">/*<em class="jxr_comment"> Take note of who we are going to notify (and potentially un-notify) */</em></em>
<a name="214" href="#214">214</a> 
<a name="215" href="#215">215</a>         List allListeners = <strong class="jxr_keyword">new</strong> ArrayList();
<a name="216" href="#216">216</a>         <em class="jxr_comment">// Listeners to all property change events</em>
<a name="217" href="#217">217</a>         allListeners.addAll(allVetoableChangeListeners);
<a name="218" href="#218">218</a> 
<a name="219" href="#219">219</a>         <em class="jxr_comment">// Listens to a given property change</em>
<a name="220" href="#220">220</a>         List<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> listeners =</em>
<a name="221" href="#221">221</a>             (List)selectedVetoableChangeListeners.get(event.getPropertyName());
<a name="222" href="#222">222</a>         <strong class="jxr_keyword">if</strong> (listeners != <strong class="jxr_keyword">null</strong>) {
<a name="223" href="#223">223</a>             allListeners.addAll(listeners);
<a name="224" href="#224">224</a>         }
<a name="225" href="#225">225</a> 
<a name="226" href="#226">226</a>         <strong class="jxr_keyword">try</strong> {
<a name="227" href="#227">227</a>             Iterator iter = allListeners.iterator();
<a name="228" href="#228">228</a>             <strong class="jxr_keyword">while</strong> (iter.hasNext()) {
<a name="229" href="#229">229</a>               <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a> listener =
<a name="230" href="#230">230</a>                   (<a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a>)iter.next();
<a name="231" href="#231">231</a>               listener.vetoableChange(event);
<a name="232" href="#232">232</a>             }
<a name="233" href="#233">233</a>         } <strong class="jxr_keyword">catch</strong> (PropertyVetoException pve) {
<a name="234" href="#234">234</a>             <em class="jxr_comment">// Tell them we have changed it back</em>
<a name="235" href="#235">235</a>             <a href="../../java/beans/PropertyChangeEvent.html">PropertyChangeEvent</a> revertEvent = createPropertyChangeEvent(
<a name="236" href="#236">236</a>                     propName, newValue, oldValue);
<a name="237" href="#237">237</a>             Iterator iter = allListeners.iterator();
<a name="238" href="#238">238</a>             <strong class="jxr_keyword">while</strong> (iter.hasNext()) {
<a name="239" href="#239">239</a>                 <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a> listener =
<a name="240" href="#240">240</a>                     (<a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a>)iter.next();
<a name="241" href="#241">241</a>                 <strong class="jxr_keyword">try</strong> {
<a name="242" href="#242">242</a>                     listener.vetoableChange(revertEvent);
<a name="243" href="#243">243</a>                 } <strong class="jxr_keyword">catch</strong> (PropertyVetoException ignored) {
<a name="244" href="#244">244</a>                 }
<a name="245" href="#245">245</a>             }
<a name="246" href="#246">246</a>             <strong class="jxr_keyword">throw</strong> pve;
<a name="247" href="#247">247</a>         }
<a name="248" href="#248">248</a>     }
<a name="249" href="#249">249</a> 
<a name="250" href="#250">250</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a>[] getAsVetoableChangeListenerArray(
<a name="251" href="#251">251</a>             List<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> listeners) {</em>
<a name="252" href="#252">252</a>         <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a>[] arrayResult = <strong class="jxr_keyword">new</strong> <a href="../../java/beans/VetoableChangeListener.html">VetoableChangeListener</a>[listeners.size()];
<a name="253" href="#253">253</a> 
<a name="254" href="#254">254</a>         Iterator<em class="jxr_comment">/*<em class="jxr_comment">&lt;VetoableChangeListener&gt;*/</em> iter = listeners.iterator();</em>
<a name="255" href="#255">255</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; arrayResult.length; ++i) {
<a name="256" href="#256">256</a>             arrayResult[i] = (VetoableChangeListener) iter.next();
<a name="257" href="#257">257</a>         }
<a name="258" href="#258">258</a> 
<a name="259" href="#259">259</a>         <strong class="jxr_keyword">return</strong> arrayResult;
<a name="260" href="#260">260</a>     }
<a name="261" href="#261">261</a> }
</pre>
<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
</html>

